This approach utilizes the fact that if the centerline of target image gets through the center point of the image plane,perspective projection and parallel projection must have the same image-forming property.

依據(jù)在目標(biāo)成像的中軸線通過像面中心的時(shí)候，平行投影法和透視投影法有相同的成像特征這一事實(shí)，提出了一種無模型誤差的修正平行投影法在线无码国产观看播放网址。

Give a projecting plane,sign volume of pentahedron for each triangle in mesh,which is constructed by the triangle and it projection in projecting plane,is computed.Volume of the mesh is algebraic sum of all pentahedrons' signed volume.Triangles will be partition into several smaller triangles when necessary.

該方法通過指定投影平面，計(jì)算每個(gè)三角面片及其在投影平面上的投影所圍成的凸五面體的帶符號(hào)體積（必要時(shí)對(duì)三角面片進(jìn)行細(xì)分）精品aa视频在线，整個(gè)模型的體積為所有凸五面體帶符號(hào)體積的代數(shù)和2019年一级黄片。

A new method——" projection plane transforming method", is the key to ascertain the position of the transformed projection plane which makes the projection of the intersectional trajectory be a circle.

采用換面法求解直線與橢圓球面的交點(diǎn)，關(guān)鍵在于確定被改換投影面的位置国产91中文字幕，使截交線在投影面上的投影為圓欧美丝袜A∨在线一区二区三区。

Using guyed tower middle line insulator string as an object, through analyzing of distance between cross arm and boom guy plumb plane, and projecting insulator string length, angle, conductor wind inclined angle, and sag to boom guy plumb plane, middle line insulator string tracking equations can be established.

以拉線塔中線絕緣子串為分析對(duì)象，通過對(duì)橫擔(dān)鲁一鲁性爱视频播放、拉線鉛錘面間的距離分析加勒比官网中文在线，再將絕緣子的串長(zhǎng)、角度免费亚洲爱爱视频，導(dǎo)線風(fēng)偏角国产麻豆综合在线视频、弧垂投影至拉線鉛錘面，在拉線鉛錘面建立中線絕緣子串的軌跡方程韩国日本国产欧美一区二区，以帶電體與拉線間的距離為限制條件国产乱人视频在线观看ktv，從不同角度計(jì)算出第1、2啪啪啪啪网址、3極限風(fēng)偏角久久无码免费的A毛片大全，取其中的最小值為極限風(fēng)偏角。

On the basis of Earth surface space using reference ellipsoid as height basis, map space using Gauss-Kruger projection plane as height basis, a viewpoint is proposed that map projection actually establishes corresponding relationship between the height bases of two different spaces above. From the viewpoint of projection and visible representation, the relationships among earth surface space, RS imagery space and map space are analyzed; the differences among different representations of earth surface space are identified theoretically; virtual reality is applied to the representation of land surface space, and a prototype of real 3D virtual reality system based on spatial information is developed. By means of digital simulation, virtual reality representation of land surface space in visual image space is realized.

在以參考橢球面為高程基準(zhǔn)面表征地表空間亚洲A级片中文字幕在线观看、以高斯-克呂格地圖平面為高程基準(zhǔn)面表征地圖空間的思想基礎(chǔ)上草草操视频，提出了地圖投影實(shí)質(zhì)上是建立兩個(gè)空間的高程基準(zhǔn)面之間關(guān)系的觀點(diǎn)；從投影和可視表達(dá)的角度国产精品香蕉在线的人，分析了地表空間国产精品萌妹子6人美女毛片视频一区二区、遙感圖像空間、地圖空間之間的關(guān)系色久综合在线，從理論上區(qū)分了對(duì)地表空間的不同表達(dá)方式之間存在的差別www.91久久；將虛擬現(xiàn)實(shí)技術(shù)應(yīng)用于地表空間的表達(dá)xfplay资源，研制了空間信息三維虛擬現(xiàn)實(shí)系統(tǒng)原型，利用數(shù)字模擬技術(shù)在視像空間實(shí)現(xiàn)了對(duì)地表空間的真三維虛擬現(xiàn)實(shí)表達(dá)2021最新韩国三级理论电影。

The characters of the singular point of the visible contour line of a concave rotative surface and its corresponding projection are analyzed on condition that the projection of the contour line is smooth near the singular point , the shape of the visible contour line of a concave rotative surface near the singular point is further studied.

對(duì)凹回轉(zhuǎn)面可見輪廓線的投影在奇點(diǎn)附近仍光滑的情況下美女黄的免费，分析了可見輪廓線本身與奇點(diǎn)對(duì)應(yīng)點(diǎn)處的曲線特征以及可見輪廓線在其對(duì)稱平面的投影圖上與奇點(diǎn)對(duì)應(yīng)的點(diǎn)的特征。對(duì)凹回轉(zhuǎn)面可見輪廓線在奇點(diǎn)附近形狀作了進(jìn)一步的分析與研

Firstly, the developing principles of the cylindrical internal helical gear are proposed through analyzing the movement and geometry requirements, which provides continuous contact between the mating gear surfaces. The tooth surface of the internal helical gear in the new gearing can be imagined as being generated by the normal section of the conjugated surface of the ball-tooth, moving along the radial projection of helix line of the tooth-root circle. Also, the proposed surface can be approximate tangent to the conjugated surface of the ball-tooth along a spacial curve.

首先一级簧片a片，通過分析保證行星輪作螺環(huán)運(yùn)動(dòng)時(shí)與內(nèi)斜齒輪實(shí)現(xiàn)連續(xù)嚙合傳動(dòng)的運(yùn)動(dòng)和幾何條件看A一级欧美黄色录像，提出了圓柱內(nèi)斜齒輪齒面的兩種形成原理：即由球齒運(yùn)動(dòng)包絡(luò)曲面的法截面沿其齒根圓螺旋線在徑向的投影進(jìn)行拓展所形成的內(nèi)齒面，以及與球齒運(yùn)動(dòng)包絡(luò)曲面呈近似相切接觸的等螺距齒面構(gòu)成的內(nèi)齒面操欧美老女人的大肥逼。

Mercator is the type of projection you see used on Live maps and Google maps, but as many often mistakenly thinks, they do NOT use WGS84 for the projected map, although WGS84 is used when you directly input longitude/latitude values using their API.

Live Map和Google Map都使用墨卡托投影xx网站在线观看，但并不像人們認(rèn)為的那樣他們使用WGS84基準(zhǔn)面，雖然你在他們的API中輸入的值是WGS84下的值久久激情精品视频」?1精品片在线！咀g注：原因是WGS84基準(zhǔn)面是基于橢球面的，而LiveMap和GoogleMap使用的是球面神马播播岛热岛私人影院。另外欧美4438，YahooMap使用的是等距圓柱投影。

It respectively constructs quasi projection-separation facet sets of two convex polytopes while their orthogonal projection on the centerline overlap mutually. Afterward it judges the separation of two convex polytopes by confirming non-overlap in orthographic projection on the centerline or by finding out a projection-separation facet from two quasi projection-separation facet sets, otherwise a collision is judged.

該算法通過判斷2個(gè)凸多面體在中心線上的正投影不相交亚洲欧美日韩精品视频一区，或者分別構(gòu)造它們的準(zhǔn)投影分離面集合香蕉香蕉国产片一级一级毛片，并從這2個(gè)集合中找到一個(gè)投影分離面，來判斷2個(gè)凸多面體分離国产系列第一页；否則www.99riav24.com，判斷為相交。

Firstly,we generated two depth buffers for occluder and receiver,discretizing the occluder to micro-patches;then,we calculated the depth value of shadow for each micro-patch and estimated the visibilities of them;finally,we computed penumbra extent for each micro-patch and projected soft shadow map on the scene to obtain real-time soft shadows.

首先為場(chǎng)景中遮擋物对白露脸视频一区二区在线、接收面計(jì)算深度緩存，并離散遮擋物成許多微面网站懂得；接著計(jì)算每個(gè)微面的陰影深度值超碰在线最新地址，估計(jì)微面的可見度；最后計(jì)算微面半影范圍怕怕怕1000无档免费视频网站，將軟陰影圖投影回場(chǎng)景中日本黄页网，得到實(shí)時(shí)軟陰影。